How can jammers disable or affect surveillance in your home?

Worried about thieves using jammers to destroy surveillance cameras at home, but don't know why. Can anyone explain?

Topsignaljammer  2022.3

According to your description, the only thing that can disable the camera is the signal blocker and EMP. The former can have an impact on wireless signal monitoring equipment, but has no effect on conventional buried wire monitoring. The latter has an impact on all surveillance cameras without EMP protection, but the range of action is very short, for example, it needs to get close to 10~30cm from the target, so unless it is military-grade equipment, it is meaningless in actual combat.